summaryrefslogtreecommitdiff
path: root/board/nvidia/harmony/harmony.c
blob: 32ed9bb7d1af682ea5a2a4ccbf84663418f47bc0 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
/*
 *  (C) Copyright 2010,2011
 *  NVIDIA Corporation <www.nvidia.com>
 *
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 */

#include <common.h>
#include <asm/io.h>
#include <asm/arch/clock.h>
#include <asm/arch/funcmux.h>
#include <asm/arch/pinmux.h>
#include <asm/arch/tegra.h>
#include <asm/arch-tegra/mmc.h>
#include <asm/gpio.h>
#ifdef CONFIG_TEGRA_MMC
#include <mmc.h>
#endif


#ifdef CONFIG_TEGRA_MMC
/*
 * Routine: pin_mux_mmc
 * Description: setup the pin muxes/tristate values for the SDMMC(s)
 */
static void pin_mux_mmc(void)
{
	funcmux_select(PERIPH_ID_SDMMC4, FUNCMUX_SDMMC4_ATB_GMA_GME_8_BIT);
	funcmux_select(PERIPH_ID_SDMMC2, FUNCMUX_SDMMC2_DTA_DTD_8BIT);

	/* For power GPIO PI6 */
	pinmux_tristate_disable(PINGRP_ATA);
	/* For CD GPIO PH2 */
	pinmux_tristate_disable(PINGRP_ATD);

	/* For power GPIO PT3 */
	pinmux_tristate_disable(PINGRP_DTB);
	/* For CD GPIO PI5 */
	pinmux_tristate_disable(PINGRP_ATC);
}

/* this is a weak define that we are overriding */
int board_mmc_init(bd_t *bd)
{
	debug("board_mmc_init called\n");

	/* Enable muxes, etc. for SDMMC controllers */
	pin_mux_mmc();

	debug("board_mmc_init: init SD slot J26\n");
	/* init dev 0, SD slot J26, with 4-bit bus */
	/* The board has an 8-bit bus, but 8-bit doesn't work yet */
	tegra_mmc_init(0, 4, GPIO_PI6, GPIO_PH2);

	debug("board_mmc_init: init SD slot J5\n");
	/* init dev 2, SD slot J5, with 4-bit bus */
	tegra_mmc_init(2, 4, GPIO_PT3, GPIO_PI5);

	return 0;
}
#endif